maple: Clean up driver struct initializations.

Author: QuzarDC

kernel/arch/dreamcast/hardware/maple/controller.c

@@ -225,9 +225,7 @@ static maple_driver_t controller_drv = {
     .functions = MAPLE_FUNC_CONTROLLER,
     .name = "Controller Driver",
     .periodic = cont_periodic,
-    .status_size = sizeof(cont_state_t),
-    .attach = NULL,
-    .detach = NULL
+    .status_size = sizeof(cont_state_t)
 };
 
 /* Add the controller to the driver chain */

kernel/arch/dreamcast/hardware/maple/keyboard.c

@@ -808,8 +808,7 @@ static maple_driver_t kbd_drv = {
     .name = "Keyboard Driver",
     .periodic = kbd_periodic,
     .status_size = sizeof(kbd_state_private_t),
-    .attach = kbd_attach,
-    .detach = NULL
+    .attach = kbd_attach
 };
 
 /* Add the keyboard to the driver chain */

kernel/arch/dreamcast/hardware/maple/lightgun.c

@@ -13,10 +13,7 @@
 /* Device Driver Struct */
 static maple_driver_t lightgun_drv = {
     .functions = MAPLE_FUNC_LIGHTGUN,
-    .name = "Lightgun",
-    .periodic = NULL,
-    .attach = NULL,
-    .detach = NULL
+    .name = "Lightgun"
 };
 
 /* Add the lightgun to the driver chain */

kernel/arch/dreamcast/hardware/maple/mouse.c

@@ -87,9 +87,7 @@ static maple_driver_t mouse_drv = {
     .functions = MAPLE_FUNC_MOUSE,
     .name = "Mouse Driver",
     .periodic = mouse_periodic,
-    .status_size = sizeof(mouse_state_t),
-    .attach = NULL,
-    .detach = NULL
+    .status_size = sizeof(mouse_state_t)
 };
 
 /* Add the mouse to the driver chain */

kernel/arch/dreamcast/hardware/maple/purupuru.c

@@ -55,10 +55,7 @@ int purupuru_rumble(maple_device_t *dev, const purupuru_effect_t *effect) {
 /* Device Driver Struct */
 static maple_driver_t purupuru_drv = {
     .functions = MAPLE_FUNC_PURUPURU,
-    .name = "PuruPuru (Vibration) Pack",
-    .periodic = NULL,
-    .attach = NULL,
-    .detach = NULL
+    .name = "PuruPuru (Vibration) Pack"
 };
 
 /* Add the purupuru to the driver chain */

kernel/arch/dreamcast/hardware/maple/sip.c

@@ -285,8 +285,7 @@ static maple_driver_t sip_drv = {
     .name = "Sound Input Peripheral",
     .periodic = sip_periodic,
     .status_size = sizeof(sip_state_t),
-    .attach = sip_attach,
-    .detach = NULL
+    .attach = sip_attach
 };
 
 /* Add the SIP to the driver chain */